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Why Large Format?
In a day and age of fully automated conventional and digital
cameras, one wonders why one would return to the older, more
cumbersome box/bellows style of a large format camera. Without
question, the ultra-fast cameras of today will out perform an
older view camera in most respects. One reason still stands:
When enlarged, the quality of larger format films are clearly
superior to that of 35mm images.
Large format is normally defined as a camera which uses film
in sizes 4x 5 and larger. 4x5 film is 16 times the
area of 35mm film. While not very important in small prints or
even newspaper and magazine reproduction, the difference becomes
evident in large photographic prints. Even the finest grain small
films can only enlarge so far before details become fuzzy and
obscure.
The time will come soon when digital camera backs
will replace even large format film. At present they need to
attach to a computer with lots of memory and a battery pack.
For now digital printing from scanned originals is emerging as
a replacement for older darkroom techniques. Quality scans are
made on high-density drum and drum-like scanners to make digital
files of 150-300 megabytes. We are in a transition as digital
methods of printing provide greater sharpness, more accurate
color, and increase the archival display life of the photograph.
At present Erskine is in the process of converting and archiving
his collection to digital files using an Imacon Flextight Precicion
III scanner. Each image requires several hours of inspection
and retouch after scanning so the process will be ongoing.
Besides larger film size, a good view camera allows the lens
board and film back to be adjusted to increase depth-of-field
and correct perspective for additional image quality. These swings,
tilts, and shifts vary between view cameras with the monorail
design allowing extreme flexibility; next, the field
camera having most major adjustments, and last the press
camera with almost no special adjustment.
Erskine uses a Linhof (4"x 5" film) field camera
that is compact when folded, yet allows all the adjustments needed
for landscape photography. His second camera, a Fuji GX 680III
has all the adjustment features of a field camera while using
medium (6x8cm) format film.
There are many limitations to working with large format cameras.
The weight of camera, lenses, film holders, and tripod in our
backpacks is about 50 pounds. Viewing and composing is done on
the ground glass (the image is upside down and backwards) under
a dark cloth. Although it is possible with some view cameras
to hand hold, a tripod and cable release are far more practical.
The tripod also allows small apertures to f/64 with very slow
shutter speeds: 1/4th to 2 sec. is common. The last inconvenience
is perhaps film cost and availability. What few color films are
available are usually professional films and recommend
refrigeration and processing within a few days of exposure. The
cost of a processed sheet of 4 x 5 color film is about $5.00
making the most ardent shutterbug a conservative.
Many professionals use the medium format (2 1/4 roll
film) as a compromise of cost, convenience, and flexibility for
the bulk of their work, but when excellence is demanded, the
large format view camera is called upon for its unique advantages. |